Apparatus for separating coal and coke from ashes.



- PATENTED JUNE 21, 1904. o. N. PAVER. APPARATUS FOR SBPARATING GOAL AND00KB PROM ASHES.

APPLICATION IILBD D110. 12, 1903.

N0 MODEL.

THE NORRIS Farms c0. vuo'rourm.. wAsHmsmN, n, L.

UNITED STATES Patented June 21, 1904.

PATENT OFFICE.

CHARLES NELSON PAVER, OF CINCINNATI, OHIO.

APPARATUS FOR SEPARATING com. AND COKE FROM ASHES.-

SPEOIFICATION forming part of Letters PatentiNo. 763,018, dated June 21,1904.

i 7 Application filed December 12, 1903.. Serial No. 184,943. (Nomodel.)

Too/ll whom it may concern:

Be it known that I, CHARLES NELson PAVER, a citizen of the UnitedStates, residing at Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful Improvements in Apparatus forSeparating Coal and Coke from Ashes; and I do hereby declare thefollowing to be a full, clear, and exact description'of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in apparatus for separating coal,coke, and cinders from ashes.

One of its objects is to provide apparatus whichwill separate coal andpartially-burned coke from ashes without requiring the shaking orsifting thereof.

Another object is to provide'such apparatus so inclosed as to preventthe fine particles of ashes escaping and settling on other articles.

It further consists in certain details of form, combination, andarrangement, all of which will be more fully set forth in thedescription of the accompanying drawings, in which Figure 1 is a centralvertical section through my improved apparatus. Fig. Qis a top plan viewof the same. Fig. 3 is a perspective view of the supporting-frame. Fig.4 is a central vertical section through one of the screen-pans. Fig. 5isa perspective view of the upper portion of the apparatus with the lidremoved. v

A represents a can, barrel, or other receptacle to receive the ashes,which is preferably provided with a lid A.

B represents the supporting-frame, composed of a series of uprights b,secured together by bands 6', the upper ends of the uprights beingpreferably bent over to form hooks 6 which engage the upper edge of thecan to suspend the frame therein. A series of brackets c are secured tothe uprights b at regular intervals.

1, 2, 3, A, 5, and 6 represent screen-pans, the sides of which arepreferably of sheet metal and the bottom of wire screen. These pans aresuccessively of smaller diameter and so arranged relative to thesupporting-frame that the smaller pans pass the brackets designed tosupportthe larger pans until they reach their proper place in theseries. The mesh or size of the openings in the screens of the pansdecrease from top to bottom of the series, the mesh of the top pan beingone and a half or two inches and the meshof the successive pansdecreasing to one-fourth to onehalf inch in, the bottom pan. The pansare preferably arranged so as to leave a space between the bottom of onepan and the top edge of the next lower pan. A space is left in the canbelow the lower pan to receive the ashes.

In practice the lid is removed and the mixture of coal, coke, and ashesdumped into the top screen-pan. As the meshes of this pan areexcessively large, all or nearly all of the charge passes through,being, however, divided or broken up in its passage through the screen.The effect of the charge passing through the series of pans is to tumblethe particles of coal and coke in their passage, so that the ashes arefreed therefrom, and still leaving the coal and coke resting lightly onthe screens instead of being packed and wedged into the meshes, as wouldbe done by shaking or sifting. In this manner each successive screenseparates out a fraction of the coal and coke and divides up the chargeuntil the fine ashes are finally deposited in the bottom of the can. Aconsiderable portion of the fine ash also passes through the openingsbetween the pans and then settles to the bottom of the can outside theframe. The coal and coke may be recovered after each operation or as theend of two or more operations',as des1re V I am thus enabled to separatethe coal and coke without the necessity of shaking or sifting the ashesand to obtain a better result and recover a larger per cent. thereofthan where shaking is resorted to. Practically none of the fine ashescapes through the mouth of the can, even if the lid is not immediatelyreplaced.

Having described my invention, what I claim is- I 1. In combination witha receptacle to receive ashes, a skeleton supporting-frame dependingfroin the mouth of said receptacle, a series of screen-pans stationarilysupported in the upper portion of the receptacle upon said frame, openspaces between the respective screen-pans, and spaces between the sidewalls of the pans and the inside wall of the receptacle, the meshes ofthe screens decreasing in size from the top downward, whereby the chargeis automatically separated and graded in its passage through therespective screens, and the fine suspended material is free to passbetween the screens, and thence settle to the bottom of the receptaclethrough the space between the screens and the inner wall of thereceptacle.

2. In combination with a receptacle to receive ashes, a skeleton frameconsisting of inclined uprights provided with brackets, andconnecting-bands stationarily supported with reference to thereceptacle, a series of screenpans of successively-decreasing diameterstationarily seated upon said brackets,the mesh of the respective pansdecreasing fromthe top downward, whereby the charge is automaticallyseparated and graded in its passage through the respective screens.

3. In combination with a receptacle to receive ashes, a supporting-framemounted within said receptacle and stationarily with reference thereto,a series of screen-pans of different diameters, brackets arranged insets upon the supporting-frame to seat and stationarily support the pansof different diameter in' a predetermined order one above the other, themesh of the respective pans decreasing in size from the top downward.

4. In combination with a receptacle to receive ashes, an extended seriesof screen-pans of different diameter stationarily supported one abovethe other in and relative to the upper part of said receptacle, themeshes of the respective pans decreasing in size from the top downward,and brackets arranged in sets.

each set being adapted to support only a pan ofa particular diameter,whereby the sifting and grading is automatically eifected by thetumbling action of the charge in falling successively from screen toscreen.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHARLES NELSON PAVER.

Witnesses:

C. W. MILES, A. MoConMAoK.

